The Delta 3 Classic pairs a 1024Wh battery with an 1800W inverter and a 3600W surge figure, which is the best balance of tank and pipe in this lineup. Its X-Stream wall charging takes it from empty to 80 percent in about 45 minutes, and a UPS switchover under 10 ms keeps a PC or router running when the grid drops. The 100W USB-C port can charge a laptop without the inverter.
Against the Bluetti Elite 100 V2 it matches the rating and charge time on paper, and against the Jackery Explorer 1000 v2 it has 300W more continuous output. At 1800W it can run a kettle or a microwave for short bursts, but a 1024Wh tank empties in roughly half an hour at that load. For a fridge and a router it lasts many hours.
Ownership is mostly about storage and charging habits. Keep it at a partial charge when idle, switch the AC output off when unused so the inverter does not burn standby power, and match any solar panel to the input limits before you buy one.
What works
- 1800W rated output with a 3600W surge figure
- 0 to 80 percent charge in about 45 minutes
- UPS switchover under 10 ms protects PCs
- 100W USB-C charges laptops without the inverter
Watch out for
- 1024Wh tank empties fast at full 1800W load
- Heavy for hand carrying over distance
- Solar input limits need checking before panel purchase
Spec sheet
- Capacity
- 1024Wh
- AC output
- 1800W, 3600W surge
- AC recharge
- 0 to 80% in 45 min
- UPS switchover
- Under 10 ms
- USB-C
- 100W







